The Energy Smart 9-watt LED bulb looks almost like an incandescent replacement product, but it has heat-reducing fins and will distribute light like a traditional 40-watt product. Rated at over 25,000 hours of life (or 17 years based on four hours of daily use), the bulb is an omni-directional LED replacement so it emits light all around the bulb. Cost: Between $40 and $50. GE Appliances & Lighting. 800-435-4448.